Climate data from NOAA/NWS Co-op Network, Evaporation Pan and SNOTEL/Snowcourse stations are compiled in Table 5.2-1 and the locations are shown on Figure 5.2-3. Figure 5.2-3 also shows precipitation contour data from the Spatial Climate Analysis Service (SCAS) at Oregon State University. The Salt River Basin does not contain AZMET stations. More detailed information on climate in the planning area is found in Section 5.0.3. A description of the climate data sources and methods is found in Volume 1, Appendix A.

There are 13 NOAA/NWS Co-op network climate stations in the basin. The average monthly maximum temperature occurs in July and ranges between 90.3°F at Mormon Flat and 59.2°F at Hawley Lake. The average monthly minimum temperature occurs in January or December and ranges between 24.3°F at Hawley Lake and 52.6°F at Mormon Flat.

Highest average seasonal rainfall occurs in the summer (June-September) at most stations. For the period of record used, the highest annual rainfall is 39.62 inches at Hawley Lake and the lowest is 13.78 inches at Globe.

There are three evaporation pan sites in this basin. Elevation at the stations range from 2,200 feet to 8,180 feet and the corresponding annual average evaporation ranges from 96.71 inches to 33.17 inches.